import { describe, expect, it } from "vitest";

import { createBoxBrush } from "../../src/document/brushes";
import { createEmptySceneDocument } from "../../src/document/scene-document";
import { migrateSceneDocument } from "../../src/document/migrate-scene-document";
import { parseSceneDocumentJson, serializeSceneDocument } from "../../src/serialization/scene-document-json";

describe("scene document JSON", () => {
  it("round-trips the current empty schema", () => {
    const document = createEmptySceneDocument({ name: "Bootstrap Scene" });
    const serializedDocument = serializeSceneDocument(document);

    expect(parseSceneDocumentJson(serializedDocument)).toEqual(document);
  });

  it("round-trips a document containing a canonical box brush", () => {
    const brush = createBoxBrush({
      id: "brush-box-room",
      center: {
        x: 0,
        y: 1,
        z: 0
      },
      size: {
        x: 4,
        y: 2,
        z: 6
      }
    });
    const document = {
      ...createEmptySceneDocument({ name: "Brush Scene" }),
      brushes: {
        [brush.id]: brush
      }
    };

    expect(parseSceneDocumentJson(serializeSceneDocument(document))).toEqual(document);
  });

  it("migrates the foundation schema to the current schema version", () => {
    const migratedDocument = migrateSceneDocument({
      version: 1,
      name: "Foundation Scene",
      world: createEmptySceneDocument().world,
      materials: {},
      textures: {},
      assets: {},
      brushes: {},
      modelInstances: {},
      entities: {},
      interactionLinks: {}
    });

    expect(migratedDocument.version).toBe(2);
    expect(migratedDocument.brushes).toEqual({});
    expect(migratedDocument.name).toBe("Foundation Scene");
  });

  it("rejects unsupported versions", () => {
    expect(() =>
      migrateSceneDocument({
        version: 99,
        name: "Legacy",
        world: {},
        materials: {},
        textures: {},
        assets: {},
        brushes: {},
        modelInstances: {},
        entities: {},
        interactionLinks: {}
      })
    ).toThrow("Unsupported scene document version");
  });
});